New Scientist: The planet is definitely warming. Despite a recent slowing in the pace, the atmosphere is 0.7 °C warmer than in 1950. The oceans are also warming. It is virtually certain most of this is due to human influences, mainly our emissions of carbon dioxide from burning carbon-based fuels, and deforestation.
Warming has been strongest in the Arctic, where sea ice is disappearing and permafrost is melting. The extent of sea-ice loss is unprecedented in 2000 years and very likely due to man-made climate...